summaryrefslogtreecommitdiffstats
path: root/system/core/Lang.php
blob: 3236709f2320eb34bdd8e2a2d8119d8c16d8a216 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
<?php
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.2.4 or newer
 *
 * NOTICE OF LICENSE
 *
 * Licensed under the Open Software License version 3.0
 *
 * This source file is subject to the Open Software License (OSL 3.0) that is
 * bundled with this package in the files license.txt / license.rst.  It is
 * also available through the world wide web at this URL:
 * http://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to obtain it
 * through the world wide web, please send an email to
 * licensing@ellislab.com so we can send you a copy immediately.
 *
 * @package		CodeIgniter
 * @author		EllisLab Dev Team
 * @copyright	Copyright (c) 2008 - 2013, EllisLab, Inc. (http://ellislab.com/)
 * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * Language Class
 *
 * @package		CodeIgniter
 * @subpackage	Libraries
 * @category	Language
 * @author		EllisLab Dev Team
 * @link		http://codeigniter.com/user_guide/libraries/language.html
 */
class CI_Lang {

	/**
	 * List of translations
	 *
	 * @var	array
	 */
	public $language =	array();

	/**
	 * List of loaded language files
	 *
	 * @var	array
	 */
	public $is_loaded =	array();

	/**
	 * Class constructor
	 *
	 * @return	void
	 */
	public function __construct()
	{
		log_message('debug', 'Language Class Initialized');
	}

	// --------------------------------------------------------------------

	/**
	 * Load a language file
	 *
	 * @param	mixed	$langfile	Language file name
	 * @param	string	$idiom		Language name (english, etc.)
	 * @param	bool	$return		Whether to return the loaded array of translations
	 * @param 	bool	$add_suffix	Whether to add suffix to $langfile
	 * @param 	string	$alt_path	Alternative path to look for the language file
	 *
	 * @return	void|string[]	Array containing translations, if $return is set to TRUE
	 */
	public function load($langfile, $idiom = '', $return = FALSE, $add_suffix = TRUE, $alt_path = '')
	{
		$langfile = str_replace('.php', '', $langfile);

		if ($add_suffix === TRUE)
		{
			$langfile = str_replace('_lang', '', $langfile).'_lang';
		}

		$langfile .= '.php';

		if (empty($idiom) OR ! ctype_alpha($idiom))
		{
			$config =& get_config();
			$idiom = empty($config['language']) ? 'english' : $config['language'];
		}

		if ($return === FALSE && isset($this->is_loaded[$langfile]) && $this->is_loaded[$langfile] === $idiom)
		{
			return;
		}

		// Load the base file, so any others found can override it
		$basepath = BASEPATH.'language/'.$idiom.'/'.$langfile;
		if (($found = file_exists($basepath)) === TRUE)
		{
			include($basepath);
		}

		// Do we have an alternative path to look in?
		if ($alt_path !== '')
		{
			$alt_path .= 'language/'.$idiom.'/'.$langfile;
			if (file_exists($alt_path))
			{
				include($alt_path);
				$found = TRUE;
			}
		}
		else
		{
			foreach (get_instance()->load->get_package_paths(TRUE) as $package_path)
			{
				$package_path .= 'language/'.$idiom.'/'.$langfile;
				if ($basepath !== $package_path && file_exists($package_path))
				{
					include($package_path);
					$found = TRUE;
					break;
				}
			}
		}

		if ($found !== TRUE)
		{
			show_error('Unable to load the requested language file: language/'.$idiom.'/'.$langfile);
		}

		if ( ! isset($lang) OR ! is_array($lang))
		{
			log_message('error', 'Language file contains no data: language/'.$idiom.'/'.$langfile);

			if ($return === TRUE)
			{
				return array();
			}
			return;
		}

		if ($return === TRUE)
		{
			return $lang;
		}

		$this->is_loaded[$langfile] = $idiom;
		$this->language = array_merge($this->language, $lang);

		log_message('debug', 'Language file loaded: language/'.$idiom.'/'.$langfile);
		return TRUE;
	}

	// --------------------------------------------------------------------

	/**
	 * Language line
	 *
	 * Fetches a single line of text from the language array
	 *
	 * @param	string	$line		Language line key
	 * @param	bool	$log_errors	Whether to log an error message if the line is not found
	 * @return	string	Translation
	 */
	public function line($line = '', $log_errors = TRUE)
	{
		$value = ($line === '' OR ! isset($this->language[$line])) ? FALSE : $this->language[$line];

		// Because killer robots like unicorns!
		if ($value === FALSE && $log_errors === TRUE)
		{
			log_message('error', 'Could not find the language line "'.$line.'"');
		}

		return $value;
	}

}

/* End of file Lang.php */
/* Location: ./system/core/Lang.php */